How to use this calculator
Enter American odds for both legs and your stake per leg. Add your estimated win probability to see expected value for each bet type. The scenario table shows every possible outcome with exact profit and loss so you know your best and worst cases before betting.
How an if-bet works
Step 1: Place stake on Leg 1
Step 2 (if Leg 1 wins): reinvest profit on Leg 2
Step 2 (if Leg 1 loses): Leg 2 is never placed
Max loss = original stake only
Example
$110 if-bet on Team A (-110) then Team B (-110). If both win: profit from A = $100, reinvested on B, profit from B = $100/1.909 x 0.909 = ~$90.90. Total net = +$190.90. If A wins, B loses: net = $100 - $100 = -$0 (broke even on A, lost reinvested stake on B). Actually net = $100 profit from A - $100 stake on B = $0. If A loses: net = -$110 (B never placed).
Frequently asked questions
What is an if-bet?
An if-bet is a conditional wager where the second bet is only placed if the first wins. If leg 1 loses, leg 2 is cancelled and your only loss is the original stake. This limits downside compared to a parlay where both legs are at risk simultaneously.
If-bet vs parlay: which is better?
A parlay pays more when both legs win but you lose the full stake if either leg fails. An if-bet limits your loss when leg 1 loses, but pays less because you only reinvest the profit from leg 1 (not the full return) into leg 2. If-bets are a risk management tool, not a way to increase expected value.
What is a reverse bet?
A reverse bet runs two if-bets in both directions at the same time -- leg 1 to leg 2 and leg 2 to leg 1. Total risk is 2x your stake. If both legs win, both chains pay. If only one leg wins, you collect from the direction where that leg was placed first. It costs more upfront but gives two chances to chain a win.
When should I use an if-bet instead of a parlay?
Use an if-bet when you are confident in leg 1 but less certain about leg 2. This way you only risk leg 2 with the profit from leg 1, not your original bankroll. It is a defensive structure that caps both upside and downside versus a straight parlay.
